package contactbook.service;
import java.util.ArrayList;

import contactbook.model.Contact;
import contactbook.model.Group; 

public interface ContactServiceInterface {
	public Contact addContact(Contact contact, int groupId);
	public void delete(int contactId);
	public Contact getContactById(int contactId);
	public Contact affectGroup(int contactId, int groupId);
	public Contact modify(int contactId, Contact temp);
	
	public boolean exists(int contactId);
	public boolean exists(Contact c);
}
